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First-principles verification of CuNNi3 and ZnNNi3 as phonon mediated superconductors |
Chen Jian-Yong (陈建勇)a, Wang Xing (王星)b |
a Faculty of Science, Guilin University of Aerospace Technology, Guilin 541004, China; b Bowen College of Management, Guilin University of Technology, Guilin 541006, China |
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Abstract Very recently, a new Ni-based antiperovskite nitride superconductor CuNNi3 has been successfully synthesized. We investigate the electronic structures, phonon dispersions, and electron–phonon interactions of CuNNi3 and the isostructual ZnNNi3 by first-principles approach. By analyzing the Eliashberg function we obtain the superconducting transition temperature Tc 3.16 K (3.53 K), which is in good agreement with corresponding experimental Tc 3.2 K (3 K) for CuNNi3 (ZnNNi3). They can be verified as conventional phonon-mediated superconductors.
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Received: 09 December 2014
Revised: 30 March 2015
Accepted manuscript online:
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PACS:
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63.20.dk
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(First-principles theory)
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63.20.kd
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(Phonon-electron interactions)
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74.20.Fg
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(BCS theory and its development)
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Fund: Project supported by the Scientific Research Fund of Guilin University of Aerospace Technology, China (Grant No. YJ1410). |
Corresponding Authors:
Chen Jian-Yong
E-mail: glcjyong@guat.edu.cn
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Cite this article:
Chen Jian-Yong (陈建勇), Wang Xing (王星) First-principles verification of CuNNi3 and ZnNNi3 as phonon mediated superconductors 2015 Chin. Phys. B 24 086301
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[1] |
He T, Huang Q, Ramirez A P, Wang Y, Regan K A, Rogado N, Hayward M A, Haas M K, Slusky J S, Inumaru K, Zandebergen H W, Ong N P and Cava R J 2001 Nature 411 54
|
[2] |
Uehara M, Uehara A, Kozawa K and Kimishima Y 2009 J. Phys. Soc. 78 033702
|
[3] |
Helal M A and Islam A K M A 2011 Physica B 406 4564
|
[4] |
Zhai H C, Li X F, Du J Y and Ji G F 2012 Chin. Phys. B 21 057102
|
[5] |
He B, Dong C, Yang L H, Chen X C, Ge L H, Mu L B and Shi Y G 2013 Supercond. Sci. Technol. 26 125015
|
[6] |
Kohn W and Sham L 1965 Phys. Rev. A. 140 1133
|
[7] |
Baroni S, de Gironcoli S and Dal Corso A 2001 Rev. Mod. Phys. 73 515
|
[8] |
Blaha P, Schwarz K, Madsen G, Kvaniscka D and Luitz J 2001 Wien2k, An Augmented Plane Wave+Local Orbitals Program for Calculating Crystal Properties (ed. Schwarz K, Technische Universtat Wien, Austria)
|
[9] |
Okoye C M I 2010 Physica B 405 1562
|
[10] |
Xu Y H, Gao F M, Hao X F and Li Z P 2010 Comput. Mater. Sci. 50 737
|
[11] |
Blöchl P, Jepsen O and Andersen O 1994 Phys. Rev. B 49 16223
|
[12] |
Giannozzi P, Baroni S, Bonini N, et al. 2009 J. Phys.: Condens. Matter 21 395502
|
[13] |
Rappe A, Rabe K, Kaxiras E and Joannopoulos J 1990 Phys. Rev. B 41 1227
|
[14] |
Bauer R, Schmid A, Pavone P and Strauch D 1996 Phys. Rev. B 57 11276
|
[15] |
Savrasov S, Savrasov D and Anderson O 1994 Phys. Rev. Lett. 72 372
|
[16] |
Weber W 1987 Phys. Rev. Lett. 58 1371
|
[17] |
Prafulla K J 2005 Phys. Rev. B 72 214502
|
[18] |
Savrasov S and Savrasov D 1996 Phys. Rev. B 54 16487
|
[19] |
Kong Y, Dolgov O, Jepsen O and Andersen O 2001 Phys. Rev. B 64 020501
|
[20] |
Allen P and Dynes R 1975 Phys. Rev. B 12 905
|
[21] |
Mcmillan W 1968 Phys. Rev. 167 331
|
[22] |
Liu A, Mazin I and Kortus J 1994 Phys. Rev. Lett. 87 087005
|
[23] |
Si C, Liu Z, Duan W H and Liu F 2013 Phys. Rev. Lett. 111 196802
|
[24] |
Grimvall G 1981 The Electron–Phonon Interaction in Metals (Amsterdam: North-Holland) pp. 245–250
|
[25] |
Zhang A M and Zhang Q M 2013 Chin. Phys. B 22 087103
|
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